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Hi R developers, On slow file systems with large lists of files, file.exists can take a long time to run. It would be nice if users could interrupt this function. I think it would be simple to add: https://svn.r-project.org/R/trunk/src/main/platform.c, at line 1373, add "R_CheckUserInterrupt();" perhaps every some number of iterations if performance is a concern here. Thanks, Chris

The place for feature requests is bugs.r-project.org . On 15/04/2019 18:44, Christopher Hammill wrote: > Hi R developers, > > On slow file systems with large lists of files, file.exists can take a long time to run. It would be nice if users could interrupt this function. I think it would be simple to add: > > https://svn.r-project.org/R/trunk/src/main/platform.c, > >...